Even mac address can be captured by a java applet. Self signed java applet
can do the trick. It can raised to User's security level , and can run
system commands if he is Administrator level or root.

On Thu, Nov 25, 2010 at 11:05 PM, mdipierro <mdipie...@cs.depaul.edu> wrote:

> web2py cannot access the MAC address of the requester. The web server
> does not provide the information. The web server may not have the
> information itself, depending on the OS. capturing the ethernet header
> requires more privileges that the web server has.
>
> On Nov 25, 10:21 am, Richard Vézina <ml.richard.vez...@gmail.com>
> wrote:
> > What about the MAC address?
> >
> > In intranet a user can bump a other user IP easily
> >
> > Consider this under windows :
> http://www.wikihow.com/Change-your-IP-Address-%28Windows%29
> >
> > Not sure you can pick particular IP.
> >
> > With a VM under Linux you can pick the IP you want... It will conflict on
> > the network but it will works at least to hack web2py if you stole the
> > cookies...
> >
> > Richard
> >
> > On Thu, Nov 25, 2010 at 11:05 AM, mdipierro <mdipie...@cs.depaul.edu>
> wrote:
> > > Consider this scenario...
> >
> > > You use http to login and somebody intercept the communication, steals
> > > the cookie and logins using your credentials.
> >
> > > This is no more possible. Now web2py check that the IP of the client
> > > is the same as the IP of the client that started the session. If the
> > > cookie is stolen and/or used from a different IP, web2py refuses to
> > > open the corresponding session.
> >
> > > I do not see any counter-indication. Comments?
> >
> > > Massimo
> >
> >
>

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